added vscode extensions

.vscode/extensions/wix.vscode-import-cost-2.15.0/README.md

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+# Import Cost VSCode Extension [![Build Status](https://travis-ci.org/wix/import-cost.svg?branch=master)](https://travis-ci.org/wix/import-cost) [![Build status](https://ci.appveyor.com/api/projects/status/ko48qav9qqb8fv8u?svg=true)](https://ci.appveyor.com/project/shahata/import-cost)
+[![](https://vsmarketplacebadge.apphb.com/version/wix.vscode-import-cost.svg)](https://marketplace.visualstudio.com/items?itemName=wix.vscode-import-cost) [![](https://vsmarketplacebadge.apphb.com/installs/wix.vscode-import-cost.svg)](https://marketplace.visualstudio.com/items?itemName=wix.vscode-import-cost)
+
+This extension will display inline in the editor the size of the imported package.
+The extension utilizes webpack with babili-webpack-plugin in order to detect the imported size.
+![Example Image](https://file-wkbcnlcvbn.now.sh/import-cost.gif)
+
+## Features
+Calculates the size of imports and requires.
+Currently supports:
+
+- Default importing: `import Func from 'utils';`
+- Entire content importing: `import * as Utils from 'utils';`
+- Selective importing: `import {Func} from 'utils';`
+- Selective importing with alias: `import {orig as alias} from 'utils';`
+- Submodule importing: `import Func from 'utils/Func';`
+- Require: `const Func = require('utils').Func;`
+- Supports both `Javascript` and `Typescript`
+
+## Why & How
+I detail the Why and How in this blog post:
+https://medium.com/@yairhaimo/keep-your-bundle-size-under-control-with-import-cost-vscode-extension-5d476b3c5a76
+
+## Configuration
+
+The following properties are configurable:
+
+```javascript
+  // Upper size limit, in KB, that will count a package as a small package
+  "importCost.smallPackageSize": 50,
+
+  // Upper size limit, in KB, that will count a package as a medium package
+  "importCost.mediumPackageSize": 100,
+
+  // Decoration color for small packages
+  "importCost.smallPackageColor": "#7cc36e",
+
+  // Decoration color for medium packages
+  "importCost.mediumPackageColor": "#7cc36e",
+
+  // Decoration color for large packages
+  "importCost.largePackageColor": "#d44e40",
+
+  // File extensions to be parsed by the Typescript parser
+  "importCost.typescriptExtensions": [
+    "\\.tsx?$"
+  ],
+
+  // File extensions to be parsed by the Javascript parser
+  "importCost.javascriptExtensions": [
+    "\\.jsx?$"
+  ],
+
+  // Which bundle size to display
+  "importCost.bundleSizeDecoration": "both",
+
+  // Display the 'calculating' decoration
+  "importCost.showCalculatingDecoration": true,
+
+  // Print debug messages in output channel
+  "importCost.debug": false
+```
+Any package size above the mediumPackageSize limit will be considered large.
+
+
+## Known Issues
+- Importing two libraries with a common dependency will show the size of both libraries isolated from each other, even if the common library needs to be imported only once.